SH7785 Datasheet, PDF (1316/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

25. Audio Codec Interface (HAC)
25.4 AC 97 Frame Slot Structure
Figure 25.2 shows the AC97 frame slot structure. This LSI supports slots 0 to 4 only. Slots 5 to 12
(hatched area) are out of scope.
Slot No.
HAC_SYNC
0
1
2
3
4
5
6
7
8
9
10
11
12
HAC_SDOUT (transmit)
TAG
CMD
Addr
CMD
Data
PCML PCMR LINE1 PCM PCML PCMR PCM LINE2 HSET IO
Front Front DAC Center Surr Surr LFE DAC DAC CTRL
HAC_SDIN (receive)
TAG
Status Status PCM
Addr Data Left
PCM
Right
LINE1 PCM
ADC MIC
Reser Reser Reser LINE2 HSET IO
ved ved ved ADC ADC Status
Figure 25.2 AC97 Frame Slot Structure
Table 25.3 AC97 Transmit Frame Structure
Slot Name
Description
0
SDATA_OUT TAG
Codec IDs and Tags indicating valid data
1
Control CMD Addr write port Read/write command and register address
2
Control DATA write port
Register write data
3
PCM L DAC playback
Left channel PCM output data
4
PCM R DAC playback
Right channel PCM output data
5
Modem Line 1 DAC
Modem 1 output data (unsupported)*
6
PCM Center
Center channel PCM data (unsupported)*
7
PCM Surround L
Surround left channel PCM data (unsupported)*
8
PCM Surround R
Surround right channel PCM data (unsupported)*
9
PCM LFE
LFE channel PCM data (unsupported)*
10
Modem Line 2 DAC
Modem 2 output data (unsupported)*
11
Modem handset DAC
Modem handset output data (unsupported)*
12
Modem IO control
Modem control IO output (unsupported)*
Note: * There is no register for unsupported functions.
Rev.1.00 Jan. 10, 2008 Page 1286 of 1658
REJ09B0261-0100